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1.
Open Forum Infect Dis ; 10(1): ofac606, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36628057

RESUMEN

Comparison of post-intensive care syndrome between critically ill survivors with or without coronavirus disease 2019 (CovP and CovN, respectively) showed that fewer CovP were able to return to work full time at >1 year and none at <1 year after discharge and that the majority of CovP survivors were able to work part time during both evaluation periods compared to CovN.

2.
Open Forum Infect Dis ; 8(7): ofab343, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34307734

RESUMEN

Immune thrombocytopenia (ITP) is an autoimmune condition associated with multiple risk factors including viral infections (hepatitis B virus/hepatitis C virus/cytomegalovirus, HIV, and recently severe acute respiratory syndrome coronavirus 2) and vaccines. Though immune mechanisms have been proposed to explain the pathogenesis of acute ITP, autoimmunity with the coronavirus disease 2019 (COVID-19) vaccine is still unclear and needs further research. We report a case of acute ITP after administration of the Pfizer-BioNTech mRNA COVID-19 vaccine in a patient with previously stable ITP.

3.
Radiol Case Rep ; 15(4): 442-444, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32153691

RESUMEN

Infertility is a public health concern worldwide. Hysterosalpingogram is a useful diagnostic tool to both evaluate the contours of the uterine cavity and to assess tubal patency. Intrauterine devices (IUDs) are the world's most prevalent form of long-acting reversible contraception. In this case, a 30-year-old P0 female, an immigrant from Jamaica, was referred for hysterosalpingogram for primary infertility workup. Under fluoroscopic imaging, an unexpected T-shaped IUD was visualized in the expected location of the uterus. The IUD lacked portions of the radiopaque copper lining. The patient initially denied IUD insertion. However, after further investigation, the patient's mother admitted IUD insertion at the age of 14 in Jamaica. This case raises a concern for the possibility of unexpected IUD discovery during infertility work up and emphasizes the importance of clinician awareness of the changes that may be seen on imaging when these devices are in place long-term.

4.
Am J Obstet Gynecol ; 220(5): 490.e1-490.e7, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30690012

RESUMEN

BACKGROUND: Streptococcus agalactiae (GBS) is a common pathogen known to cause neonatal and maternal infectious morbidity. Streptococcus pseudoporcinus (S pseudoporcinus) is a separate, recently identified ß-hemolytic gram-positive coccus that can cause false-positive results on standard GBS agglutination testing assays. OBJECTIVE: To determine the prevalence and clinical implications of Streptococcus pseudoporcinus colonization in pregnancy. MATERIALS AND METHODS: This is a 2-year retrospective cohort study comparing pregnant women colonized with GBS to those colonized with S. pseudoporcinus. A proteomics method of identification, namely, matrix-assisted laser desorption ionization time-of-flight mass spectrometry, was used to distinguish between S. pseudoporcinus and GBS colonization. Antibiotic susceptibility testing was carried out on all specimens. Maternal and neonatal chart reviews were conducted to identify predictors of S. pseudoporcinus colonization and to compare maternal and neonatal outcomes. RESULTS: S. pseudoporcinus colonization occurred in 1.6% of all pregnancies. A total of 2.5% of all GBS-positive results by agglutination assay were false positive, instead reflecting S. pseudoporcinus colonization. Clindamycin resistance among S. pseudoporcinus isolates is uncommon. S. pseudoporcinus colonization in pregnancy is independently associated with African American race, tobacco use, and body mass index ≥35. Preterm premature rupture of membranes or spontaneous preterm birth was more common in patients colonized with S. pseudoporcinus. CONCLUSION: Although the prevalence of S. pseudoporcinus colonization is low, it primarily occurs in African American women and is associated with preterm premature rupture of membranes or spontaneous preterm birth when compared to individuals colonized with GBS.


Asunto(s)
Complicaciones Infecciosas del Embarazo/microbiología , Infecciones Estreptocócicas/epidemiología , Streptococcus agalactiae/aislamiento & purificación , Streptococcus/aislamiento & purificación , Adulto , Negro o Afroamericano , Pruebas de Aglutinación , Antibacterianos/farmacología , Índice de Masa Corporal , Clindamicina/farmacología , Estudios de Cohortes , Farmacorresistencia Bacteriana , Femenino , Rotura Prematura de Membranas Fetales/epidemiología , Humanos , Recién Nacido , Unidades de Cuidado Intensivo Neonatal , Admisión del Paciente , Embarazo , Nacimiento Prematuro/epidemiología , Estudios Retrospectivos , Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción , Uso de Tabaco
5.
Diagn Microbiol Infect Dis ; 90(4): 296-299, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29343421

RESUMEN

BACKGROUND: Small-colony variants (SCVs) are a distinct phenotype of Staphylococcus aureus, known for their role in chronic, difficult to treat infections, including cystic fibrosis (CF) lung disease. The goal of this study was to characterize SCV MRSA infection in an adult and pediatric CF population and to identify antibiotic susceptibility patterns unique to SCV MRSA. METHODS: We recovered methicillin-resistant S. aureus (MRSA) from respiratory culture samples from CF patients at the Johns Hopkins Hospital during a 6month study period. RESULTS: Of 1161 samples, 200 isolates (17%) were identified as MRSA, and 37 isolates from 28 patients were identified as SCV MRSA. A higher proportion of MRSA was found among SCV isolates (37/66, 56%) compared to normal colony variant (NCV) isolates (163/417, 39%), p=0.02. All SCV MRSA isolates from individual patients were susceptible to vancomycin and ceftaroline, but they demonstrated higher rates of antibiotic resistance to trimethoprim/sulfamethoxazole, moxifloxacin, and erythromycin, compared to NCV MRSA isolates. Additionally, individuals with SCV MRSA had lower lung function, higher rates of persistent MRSA infection, and higher rates of previous antibiotic use, compared to individuals with NCV MRSA. CONCLUSIONS: A significant proportion of MRSA isolates recovered from patients with CF have the SCV morphology. Compared to individuals with NCV MRSA, those with SCV MRSA have higher rates of persistent MRSA infection and lower lung function. SCV MRSA isolates were more resistant than NCV, but they are highly susceptible to vancomycin, linezolid and ceftaroline.


Asunto(s)
Antibacterianos/farmacología , Fibrosis Quística/complicaciones , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Staphylococcus aureus Resistente a Meticilina/crecimiento & desarrollo , Infecciones Estafilocócicas/microbiología , Adolescente , Adulto , Anciano , Niño , Preescolar , Hospitales , Humanos , Masculino , Pruebas de Sensibilidad Microbiana , Persona de Mediana Edad , Pruebas de Función Respiratoria , Infecciones Estafilocócicas/patología , Virulencia , Adulto Joven
6.
J Clin Microbiol ; 53(12): 3926-30, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26468502

RESUMEN

During a 14-month period of using matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) for group B streptococcus (GBS) identification, we recovered 32 (1%) Streptococcus pseudoporcinus isolates from 3,276 GBS screening cultures from female genital sources (25 isolates from pregnant women and 7 from nonpregnant women). An additional two S. pseudoporcinus isolates were identified from a urine culture and a posthysterectomy wound culture. These isolates were found to cross-react with three different GBS antigen agglutination kits, PathoDx (Remel) (93%), Prolex (Pro-Lab Diagnostics) (38%), and Streptex (Remel) (53%). New approaches to bacterial identification in routine clinical microbiology laboratories may affect the prevalence of S. pseudoporcinus.


Asunto(s)
Técnicas Bacteriológicas/métodos , Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción/métodos , Infecciones Estreptocócicas/diagnóstico , Streptococcus/clasificación , Streptococcus/aislamiento & purificación , Adolescente , Adulto , Pruebas de Aglutinación , Femenino , Humanos , Embarazo , Estudios Prospectivos , Streptococcus/química , Adulto Joven
7.
G3 (Bethesda) ; 1(7): 607-13, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22384372

RESUMEN

The coordination of cell-cycle events with developmental processes is essential for the reproductive success of organisms. In Drosophila melanogaster, meiosis is tightly coupled to oocyte development, and early embryos undergo specialized S-M mitoses that are supported by maternal products. We previously showed that the small phosphoprotein α-endosulfine (Endos) is required for normal oocyte meiotic maturation and early embryonic mitoses in Drosophila. In this study, we performed a genetic screen for dominant enhancers of endos(00003) and identified several genomic regions that, when deleted, lead to impaired fertility of endos(00003)/+ heterozygous females. We uncovered matrimony (mtrm), which encodes a Polo kinase inhibitor, as a strong dominant enhancer of endos. mtrm(126) +/+ endos(00003) females are sterile because of defects in early embryonic mitoses, and this phenotype is reverted by removal of one copy of polo. These results provide compelling genetic evidence that excessive Polo activity underlies the strong functional interaction between endos(00003) and mtrm(126). Moreover, we show that endos is required for the increased expression of Mtrm in mature oocytes, which is presumably loaded into early embryos. These data are consistent with the model that maternal endos antagonizes Polo function in the early embryo to ensure normal mitoses through its effects on Mtrm expression during late oogenesis. Finally, we also identified genomic deletions that lead to loss of viability of endos(00003)/+ heterozygotes, consistent with recently published studies showing that endos is required zygotically to regulate the cell cycle during development.

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